diff --git a/src/model_physics.rs b/src/model_physics.rs
index b275a2b..19731fc 100644
--- a/src/model_physics.rs
+++ b/src/model_physics.rs
@@ -246,7 +246,7 @@ impl MeshQuery<FaceId,EdgeId,VertId> for TransformedMesh<'_>{
 	}
 	fn face_nd(&self,face_id:FaceId)->(Planar64Vec3,Planar64){
 		let (n,d)=self.mesh.face_nd(face_id);
-		(self.normal_transform*n,self.normal_determinant*d)
+		(*self.normal_transform*n,self.normal_determinant*d)
 	}
 	fn vert(&self,vert_id:VertId)->Planar64Vec3{
 		self.transform.transform_point3(self.mesh.vert(vert_id))